cmdqueue_t
static cmdqueue_t *cmdq = NULL;
static cmdqueue_t *cmdq_tail = NULL;
cmdqueue_t *cmd;
cmdqueue_t *next;
sc_free(cmd, sizeof (cmdqueue_t));
cmdqueue_t *new_cmd;
if ((new_cmd = sc_malloc(sizeof (cmdqueue_t))) == NULL) {
cmdqueue_t *cmd;
sc_free(cmd, sizeof (cmdqueue_t));